Clay-digging machine



1 Sept. 23, 1924. 1,509,173

. J. T. POKORNY CLAY DIGGING MACHINE Filed April 22 1920 2 Sheets-Sheet1 \1 Maya Ziggy J. T. POKORNY Sept.

CLAY meeme MACHINE 2 SQ eets-Sheet 2 Filed April 22. 1920 I VENTOR ITORNEY? Patented fiept. 23, 1924.

' -UNITED STATES 15%9 173 PATENT OFFICE.

JAMES TIFOKORLTY, CEDAR BAYOU, TEXAS, ASSIGNOR F ONE-THIRD TO A. T.

EDDINGSTON, OF PORT ARTHUR, JEFFERSON COUNTY, TEXAS.

cLaY-meeme MACHINE.

Application filed April 22, 1920. Serial No. 375,837.

T 0 all whom it may concern:

Be it known that I, JAMEs'T. PoxoRNY, citizen of the United States,residing at Cedar Bayou, in the county of Harrisand State of Texas, haveinvented certain new and useful Improvements in a Clay-Digging Machine,of which the following is a specification. I i

This invention relates to new and useful improvements in a clay diggingmachine.

One object of the invention is to provide a machine of the characterdescribed which isspecially adapted for the purpose of digging clay tobe used in the formation of brick, tile and the like.

Another object ofthe invention is to provide a machine of the characterdescribed by means of whichclay of a character adapted to be used inmaking'brick, tile and the preparatory to molding the same.

Another object of'the invention resides in the provision of meanswhereby the machine may be propelledalong a track in either direction;so as to-"bring the saws against the work.

With the above the inventionhas particular relation to certain novelfeaturesfof construction, operation and arrangement of parts, an exampleof which is given in this specification and illustrated in theaccompanying drawings wherein,

Figure 1 is a plan view of the machine, Figure 2 showsa side elevationof a pair of beveled pinions employed in connection fixed upcnthe shaft17 and operating over .with the means for shifting them,

Figure 8 shows a side view ofthe machine and i Figure4 shows atransversesectional view taken on the line 4, gt of Figure 3.

Referring now more particularly to the drawings wherein like numeralsofreference designate similar parts in each of the figures, the numerals1, 1 refer to the rails of a stationary track. The numerals 2, 2designate the rear tractor wheels which are flanged in the usual way totravel along said track. Front carrier wheels are also provided, but arenot shown in the drawings. The tractor wheels 2 are fixed upon therespective ends of an axle 3 which is rotatable in the bearings 1, 4 andfixed upon said axle is a sprocket wheel 5. Mounted upon the fr nt andre r axles is a frame Work 6 which like, may be dug and partiallypulverized,

and other objects in view,

supports the motor 7. This motor has the usual drive shaft 8 and fixedupon one end thereof there is a pulley 9 over which the dr1vebelt10operates. Rotatably mounted in suitablebearings 11, 11 carried by theopposite side of the frame work there is a counter shaft 12 and fixedthereon isa pulley 13 over this belt thebelt 10 operates, and throughwhich said pulley is driven. The shaft-s 12 has a spool 14 splinedthereon,

whose respective ends are formed with beveled plnions 15, 15. Rotatablymountedin sultable bearings 16, 16 carried bythe frame work, andextending at right angles to the shaft 12 there is a shaft 17 whoseforward end has the beveled pinion 18. A manual lever 19 is providedwhich is connected to the spool 14L and through which said spool may beshifted to bring the pinions 15 into mesh with the pinion 18alternatively. Fastened to the adjacent side of the frame work there .isa bracket 20 formed with three notches as 21 which are spaced apart.When the spool 14: is shifted into any particular position the lever 19may be engaged in the corresponding notch 21 to hold said spool in setposition. When one of the pinions 15 is in mesh withthe pinion 18 theshaft 17 will be driven in one direction and when the other pinion 15 isin mesh with said pinion.

from the motor. Aligned with the sprocket wheel 5 there is a sprocketwheel 22which is said sprocket wheel there is a sprocket chain23throughwhich the rear axle 3 is driven and by means ofwhich the entiremachine I may be propelled along said track either forwardly orreversely. U

Rotatably mounted in suitable bearings 24, 24 carried by the side of theframe work there is a counter shaft 25 which is in alignment with theshaft 12 and which is arranged to be clutched therewith and unclutchedtherefrom through the clutch 26.

which is controlled in the usual way by means of the clutch lever 27.The outer end of the shaft 25 has a spool gear 28 fixed thereon.

A boom is provided which is formed of the channel irons 29, 29 spaced asuitable dist n apart and tied t gether by means of suitable cross bars30. The .inner ends: of these channel irons have bearings on the shaft25. The spur gear 28 is in mesh wlth a. larger spur gear wheel 30 whichis fixed upon the corresponding end of transverse shaft 31 which isrotatably mounted in suitable bearings in the side members of'said boomand there is a roller 32 fixed upon the shaft 31 between saidsidem'embers. At the free end of the boom are the bearings 33, 33 inwhich the free shaft 34 is rotatably 'mounted and fixed upon this shaftbetween the side members 29 there is a gang of pulverizing saws 35.FiXed upon one end of the shaft 34 there is a pulley 36 which is inalignment with a similar pulley 37 which is fixed uponthe end of theshaft and operating over these pulleys and transmitting rotation fromthe latter to the former there is a belt 38 through which the saws arer0- tat'ed. Fixed upon the other end of the shaft 34 outside of thecorresponding side member -29'there is a digging-saw 39 which operatesagainst the breast of the Work and cuts the clay loose and delivers itwithin the reach of the gang saws by means of which the clay ispulverized.

Fastened to the respective side members 29, 29 areth'e side plates 40,and 41 which depend below the boom and which have the respectivebearings 42, 42 in which the transverse shaft 43 rotates. This shaft hasroller 44 fixed thereon and a bent conveyor 45 op erates over therespective rollers 32-and 44. The outer end of this conveyor is arrangedclosely adjacent the gang saws underneath and the pulverized clay isdelivered on tosaid conveyor by said saws and is carried upwardly by theconveyor and discharged into the depending hopper 46 which is secured tothe adjacent side of the frame work and which delivers the material onto a suitable conveyor as 47 by means of which the n1aterial isdelivered to the desired place. Upstanding from the side of the framework, adjacent the boom, are the standards 48, 48

which are spaced apart and between the up-per'ends of which the lever 49is pivoted. Oneend of'this leveris connected to the free end of the boomthrough the link 50 and the other end thereof has a counter balanceweight 51 attached thereto.

The standards- 48. are suitably placed. by

means of the braces 52, 52 which are fasjtened at their lower ends-tothe framework and at their upper ends; to the respective standards.These braces have suitable aligned bearings in which the shaft 523 rotates and fixed upon said shaft between said braces is a drum, 54 acable 55 is wound around the drum and has its respective ends secured tothe lever 49 on opposite sidesof 'rotatably mounted at the free end ofsaid boom, ad-ig ging saw spaced from said pul w 'erizing saws, anoperative mechanism carried bythe frame work through which said saws maybe driven,- means for elevating and lowering 'the same, dep'endingsi'de'plates carried by the boom, an endless belt moving between theside-plates, said belt and plates forming a conveyor dispose'dto receivefrom said saws. r r 4 2 A device of the character described includin aframework, a boom pivoted thereto at one end, a gang of saws rotatablymounted at the" free end-offsaid boom, an operative mechanism carried bythe frame work through which said saws maybe driven, dependingsideplates carried by the boom, an endless belt between said plates I drivenby said mechanism and forming with said plates a conveyor arranged toreceive the material from the saws, a delivery conveyor disposed toreceive from the first mentioned conveyor, and a hopper through whichthe material is? discharged from the former conveyor to the latter.

*In testimony whereof'l have. signed my name to this specification inthe presence of two subscribing witnesses. 8

WV. A. Carmen; A. Armin

